export const hashCode = str => {
    var hash = 0,
        i,
        chr;
    if (str.length === 0) return '' + hash;
    for (i = 0; i < str.length; i++) {
        chr = str.charCodeAt(i);
        hash = (hash << 5) - hash + chr;
        hash |= 0; // Convert to 32bit integer
    }
    return '' + hash;
};
